Matter that is made up of only one kind of atom

Two or more kinds of atoms that are bonded together

Two or more kinds of different atoms that are bonded together

The basic unit of matter

All compounds are molecules,

but not all molecules are compounds.

Color, smell, boiling point, melting point, infra-red spectrum, magnetic, viscosity, density, etc…

Heat of combustion, reactivity with water, PH, etc…

MATTER

Can it be physically separated?

Homogeneous Mixture

(solution)

Heterogeneous Mixture

Compound Element

MIXTURE PURE SUBSTANCE

yes no

Can it be chemically broken down into smaller

pieces?

noyesAre the parts of the mixture hard to tell

apart?

noyes

MATTER

Can it be physically separated?

Homogeneous Mixture

(solution)

Heterogeneous Mixture Compound Element

MIXTURE PURE SUBSTANCE

yes no

Can it be chemically broken down into smaller pieces?

noyesAre the parts of the mixture hard to tell apart? noyes

Colloids Suspensions

Pure SubstancesElement– composed of one kind of atom– EXAMPLE: copper wire, aluminum foil

Pure SubstancesCompound

– composed of 2 or more atoms bonded together

– properties differ from those of individual atoms

– EXAMPLE: table salt (NaCl)

Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

Combination of two or more pure substances that are not bonded together.

Heterogeneous Homogeneous

Mixtures

Solution– homogeneous– very small particles– particles don’t settle– EXAMPLE: rubbing alcohol

Mixtures

Heterogeneous mixture–Medium to very large particles– relatively easy to separate– EXAMPLE: candy

Mixtures

Colloid

– heterogeneous–medium-sized

particles– particles don’t

settle– EXAMPLE: milk

Mixtures

Suspension

– heterogeneous– large and small particles– particles settle– EXAMPLE: fresh-squeezed lemonade

Mixtures

Practice Time…

Examples:

–graphite

–pepper

–sugar

–paint

–juice

element

heterogeneous mixture

compound

homogeneous mixture(solution)

heterogeneous mixture

Examples:

–mayonnaise

–muddy water

–fog

–saltwater

–Salad dressing

colloid

suspension

colloid

solution

suspension

More practice…